Widgets:
- Fix support for expanding (wide) widgets in the Inactive Widgets area.
- Remove resizing of the sidebars height.
- Stop removing unneeded "for" attributes from labels inside the widgets. Was a fix for IE6 odd behaviour.  

See #26117.

git-svn-id: https://develop.svn.wordpress.org/trunk@26277 602fd350-edb4-49c9-b593-d223f7449a82
Appearance: Fix a PHP Notice when the update transient isn't available (for example, due to a timeout or being used offline). See #25948


git-svn-id: https://develop.svn.wordpress.org/trunk@26278 602fd350-edb4-49c9-b593-d223f7449a82